TTML Subtitle Viewer

TTML Input

Drag and drop a file here, or click to select a file

Timeline ordered

Paste your TTML content to see a clean, structured subtitle preview with start/end times.

The TTML Viewer provides a fast way to inspect Timed Text Markup files used across broadcast, streaming, and accessibility workflows.

Review XML structure, timing, and text content exported from captioning tools before delivering them to partners or ingest systems.

Easily confirm that style references, language tags, and timing attributes are present and correctly formatted.

Include the <tt> root element with proper TTML namespace declarations.
Ensure every <p> element includes begin and end attributes for timing.
Reference defined styles using the style attribute to control appearance.
Maintain well-formed XML to avoid parsing errors in broadcast systems.
Confirm timestamps use seconds with millisecond precision (e.g., 00:00:05.000s).